When a group of popular people deem something trendy and basically Fuck it to hell, however prior to this they didn't seem care in the slightest towards this thing/product, they are idiots and don't know shit.

Trend Fucker 1: Hey man you heard of apple, I got a Macbook Pro
Me: I've had a Mac since 2003....

Trend fucker 2: Hey man you heard of a band called the Gorrillaz? they're good heard them in the top ten.
Me: I've Known the gorillaz since 1998.